Package org.swisspush.gateleen.logging

Class Log4jConfigurator

java.lang.Object

org.swisspush.gateleen.logging.Log4jConfigurator

public class Log4jConfigurator
extends Object

Configurator used to configure a log4j repository dynamically. Wheter all known loggers or only the explicitly configured loggers are configured is defined by the system property "org.swisspush.gateleen.logging.log4j.showall" which defaults to false. Thus per default only the loggers are modified that have been explicitly configured to the log4j system (typically via a log4j configuration file such as log4j.properties).

Author:

schwabmar

See Also:

SYS_PROP_SHOW_ALL

Field Summary

Fields

Modifier and Type	Field	Description
static String	SYS_PROP_SHOW_ALL	Name of the "show all loggers" system property.

Method Summary

Modifier and Type	Method	Description
List<String>	getAppenders(String logger)	Gets the appenders to a specific logger.
org.apache.log4j.Level	getEffectiveLevel(String logger)	Gets a logger's effective level thus either the direct level or the inherited level from it's parent logger.
static Log4jConfigurator	getInstance()	Gets the one-and-only instance of the class Log4jConfigurator.
org.apache.log4j.Level	getLevel(String logger)	Gets a logger's actual level.
List<String>	getLoggers()	Retrieves all loggers from the log4j repository.
List<String>	getLoggersSorted()	Retrieves all loggers from the log4j repository.
void	setLoggerLevel(String logger, String level)	Sets or deletes a logger's new level.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SYS_PROP_SHOW_ALL

public static final String SYS_PROP_SHOW_ALL

Name of the "show all loggers" system property.

See Also:

Constant Field Values

Method Detail

getInstance

public static Log4jConfigurator getInstance()

Gets the one-and-only instance of the class Log4jConfigurator.

Returns:

Instance.

getLoggers

public List<String> getLoggers()

Retrieves all loggers from the log4j repository. Dependent on the flag showAll, this method either returns only the direct configured loggers or all known loggers.

Returns:

List of java.lang.String containing all logger names.

See Also:

SYS_PROP_SHOW_ALL

getLoggersSorted

public List<String> getLoggersSorted()

Retrieves all loggers from the log4j repository. Dependent on the flag showAll, this method either returns only the direct configured loggers or all known loggers.

Returns:

Sorted list of java.lang.String containing all logger names.

See Also:

SYS_PROP_SHOW_ALL

getAppenders

public List<String> getAppenders(String logger)
                          throws IllegalArgumentException

Gets the appenders to a specific logger.

Parameters:

logger - A logger's name.

Returns:

List of java.lang.String containing all appender names.

Throws:

IllegalArgumentException - In case the logger isn't known.

getLevel

public org.apache.log4j.Level getLevel(String logger)
                                throws IllegalArgumentException

Gets a logger's actual level.

Parameters:

logger - The logger.

Returns:

The logger's level or null if no level was directly set on the logger.

Throws:

IllegalArgumentException - In case the logger isn't known.

getEffectiveLevel

public org.apache.log4j.Level getEffectiveLevel(String logger)
                                         throws IllegalArgumentException

Gets a logger's effective level thus either the direct level or the inherited level from it's parent logger.

Parameters:

logger - The logger.

Returns:

The logger's effective level.

Throws:

IllegalArgumentException - In case the logger isn't known.

setLoggerLevel

public void setLoggerLevel(String logger,
                           String level)
                    throws IllegalArgumentException

Sets or deletes a logger's new level.

Parameters:

logger - Name of the logger to set.

level - Level to set the logger to.

Throws:

IllegalArgumentException - In case the logger isn't known.